Skip to main content
U.S. flag

An official website of the United States government

Estimating bird species richness from capture and count data

January 1, 1995

We used capture-recapture methods to estimate bird species richness from mist-net and point-count data from a study area in Campeche, Mexico. We estimated species richness separately for each survey technique for two habitats, forest and pasture, in six sampling periods. We then estimated richness based on species' detections by either technique, and estimated the proportion of species detected by each technique that are not part of the population sampled by the other technique. No consistent differences existed between richness estimates from count data and from capture data in the two habitats. In some sampling periods, over 50% of the richness estimate from one survey technique may be species that are not sampled by the other technique, suggesting that one technique may not be adequate to estimate total species richness and that comparing estimates from areas sampled by different techniques may not be valid.

Publication Year 1995
Title Estimating bird species richness from capture and count data
Authors D.K. Dawson, J.R. Sauer, P.A. Wood, M. Berlanga, M.H. Wilson, C.S. Robbins
Publication Type Book Chapter
Publication Subtype Book Chapter
Index ID 5210733
Record Source USGS Publications Warehouse
USGS Organization Patuxent Wildlife Research Center